Paving is a dirty and tiring job because traditional paving contains many less environmentally friendly materials (such as tar). Given the total number of road miles across the United States, this is clearly a big problem that is hard to ignore. The good news is that California is considering injecting more environmentally friendly elements into it, and will test for some recycled materials, such as plastics, to replace certain chemical ingredients.
Cal Trans is working with a company called Techni Soli to test a new highway outside Oroville, California,media reported.
In fact, as early as last year, Techni Soli had resurfaced asphalt pavement materials containing similar recycled plastic components at a busy intersection in downtown Los Angeles. But in California, the pilot project is about to move into a new, broader phase.
Amarjeet S. Benipal, director of the California Department of Transportation’s 3rd District, said in a statement Thursday:
We are excited about the introduction of a new sustainable technology that will clear the way for recycled plastic sydd projects across California.
By freeing plastic waste from landfills, new paving can be more environmentally friendly, helping to reduce greenhouse gas emissions and reducing dependence on fossil fuels.
How Its Made – Asphalt Paving (via)
Contractors have long used asphalt-based laying techniques in roadbed construction. Grinding it with large machines and mixing it into asphalt foam allows road laying to be efficiently done on 3 to 6 inches of road surface.
Although this process is ideal for re-use of old asphalt, it is not durable enough to be used on the surface of the road. To overcome this problem, the construction team must also introduce traditional hot-mixed asphalt from the plant.
In addition to the alwhatexpensive material, labor and transportation costs, the manufacturing, transportation and use of such materials also generate significant greenhouse gas emissions. The good news is that TechniSoli’s G5 combined material completely eliminates the steps of thermal mixing.
During construction, TechniSoli needs to grind the top 3 inches of the road and then mix it with a liquid polymer adhesive made mainly of recycled plastic, consuming approximately 150,000 recycled plastic bottles per mile/lane.
It is worth mentioning that this new recycled mixture has sufficient durability, can be used as the top of the highway road surface, and has a longer service life than conventional hot mixed asphalt.